The effect of trace metals of Zinc （Zn）, Selenium （Se） and Manganese （Mn） on thegrowth of a marine microalga was determined by culturing Nannochloropsis oculata in f/2 medium enrichedwith different concentration...The effect of trace metals of Zinc （Zn）, Selenium （Se） and Manganese （Mn） on thegrowth of a marine microalga was determined by culturing Nannochloropsis oculata in f/2 medium enrichedwith different concentrations of the metal compounds. The results showed that concentration and type ofthe metal compound affected the growth of Nannochloropsis. ZnCl<sub>2</sub> and Na<sub>2</sub>SeO<sub>3</sub>, promoted the growth ofNannochloropsis at relatively low concentrations of 15. 3 μmol/L and 57. 8 μmol/L respectively, but inhib-it its growth at higher concentration of 153 μmol/L and about 300 μmol/L. No significant growth promotionwas observed for MnCl<sub>2</sub> and MnSO<sub>4</sub> although MnCl<sub>2</sub> was found to have higher toxic effect than MnSO<sub>4</sub>.展开更多
基金This work was supported by Key Science Project of Fujian Province and by the Ministry of Education Foundation for University Key Teachers
文摘The effect of trace metals of Zinc （Zn）, Selenium （Se） and Manganese （Mn） on thegrowth of a marine microalga was determined by culturing Nannochloropsis oculata in f/2 medium enrichedwith different concentrations of the metal compounds. The results showed that concentration and type ofthe metal compound affected the growth of Nannochloropsis. ZnCl<sub>2</sub> and Na<sub>2</sub>SeO<sub>3</sub>, promoted the growth ofNannochloropsis at relatively low concentrations of 15. 3 μmol/L and 57. 8 μmol/L respectively, but inhib-it its growth at higher concentration of 153 μmol/L and about 300 μmol/L. No significant growth promotionwas observed for MnCl<sub>2</sub> and MnSO<sub>4</sub> although MnCl<sub>2</sub> was found to have higher toxic effect than MnSO<sub>4</sub>.
